This method graphically resets the console after its state has been cleared.
Kills the old eventspace, and creates a new parameterization
Also calls the super method.
To change/extend the user's parameterization, ovveride this method, and after the call to the super method returns, change the parameterization. For example, to add a definition of a function, f, to the users' namespace, write this:
(class ... (inherit user-param) (rename [super-reset-console reset-console]) (public [reset-console (lambda () (super-reset-console) (parameterize ([current-namespace ((in-parameterization user-param current-namespace))]) (lambda () (global-defined-value 'f (lambda (...) ...)))))]))